This tour uses Shockwave Streaming Audio and so if you have not already downloaded the Shockwave plug-in you will need to do that before starting the tour.
Tom your "Virtual Guide"
Each section of the tour contains approximately five minutes of audio and many images to illustrate your journey through the Tower of London.
When you hear the horn the narration for that section has finished so when you are ready to continue with the tour click on Tom the "Virtual Guide" to go to the next section.
There are eleven sections in all and so if you do not have enough time to finish the tour then simply bookmark the page and come back when you have more time.